What is so specifically Omani in these swords? They look to me like classical Persian, with the Badawi or Indian-style pleated wire covering the langet. And a lot of bling-bling that is likely not ethnic, but status-related:-)

The most definitive Omani features in these shamshirs is in the decoration. The floral decoration can be found at the throats of Omani khanjars. This can be seen on the chapes and lockets of the shamshirs. The leather on the scabbard is usually stitched in a distinctive Omani style seen on kattaras.

The wire wrap has a twist to it which can only be found in Omani style shamshirs.